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On Admission of VoIP Calls Over Wireless Mesh Network

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4 Author(s)
Hung-Yu Wei ; Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan. ; Kyungtae Kim ; Kashyap, A. ; Ganguly, S.

We consider the problem of supporting VoIP calls over a wireless mesh network. We particularly consider the call admission control (CAC) decision problem for VoIP calls on a mesh network. The goal of the call admission decision is to maintain the quality of VoIP calls as given by the R-score measure. In this work, we define a notion of interference capacity model that can be efficiently used to design a CAC algorithm. We show through extensive simulation of 802.11 mesh using ns-2, that our CAC performs well in multi-hop scenarios. Specifically, the proposed CAC provides less than 20% incorrect decisions for different sizes of a multihop linear topology.

Published in:

Communications, 2006. ICC '06. IEEE International Conference on  (Volume:5 )

Date of Conference:

June 2006

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